Because some of the energy is wasted and the amount of energy wasted is based on the efficiency of the machine
Force can be exerted into an object with out it moving, but if you were to move the object due to force it would be considered work. (yes, you can exert force without having the object moving)
Answer:
100J
Explanation:
Kinetic energy=1/2mv^2
Kinetic energy=(1/2 x 8)x5^2
Kinetic energy=4x25
Kinetic energy=100
100J
Answer:
cargo planes hold cargo so there hevier
Explanation:
Answer:
B
Explanation:
You always want to test as many samples as possible
